Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 26603R106
Over the rolling 12-month window, securities of DUOLINGO INC CL A COM (DE) failed to deliver in the NSCC's Continuous Net Settlement system on 77 settlement days, totaling 769,478 fail shares and peaking at 239,338 shares on 2026-02-03. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-10-14 | 714 | $140.10 |
| 2026-10-07 | 12,834 | $148.13 |
| 2026-10-02 | 245 | $146.57 |
| 2026-09-24 | 78 | $145.98 |
| 2026-09-22 | 69 | $149.42 |
| 2026-09-21 | 100 | $141.90 |
| 2026-09-17 | 1,795 | $148.17 |
| 2026-09-08 | 200 | $154.46 |
| 2026-09-04 | 23,617 | $158.82 |
| 2026-08-31 | 359 | $146.98 |
| 2026-08-24 | 1,184 | $146.13 |
| 2026-08-21 | 78 | $147.03 |
| 2026-08-14 | 1,315 | $144.10 |
| 2026-08-10 | 832 | $130.90 |
| 2026-08-04 | 18,225 | $135.80 |
| 2026-08-03 | 57,173 | $134.81 |
| 2026-07-30 | 1,295 | $140.17 |
| 2026-07-28 | 784 | $132.82 |
| 2026-07-22 | 65 | $124.71 |
| 2026-07-20 | 1,500 | $133.85 |
| 2026-07-10 | 49,366 | $129.95 |
| 2026-07-08 | 219 | $131.95 |
| 2026-07-07 | 1,694 | $129.72 |
| 2026-06-29 | 2,619 | $121.49 |
| 2026-06-26 | 291 | $119.94 |
| 2026-06-22 | 22,091 | $125.56 |
| 2026-06-15 | 1,316 | $122.63 |
| 2026-06-08 | 257 | $109.03 |
| 2026-06-05 | 3 | $109.15 |
| 2026-05-28 | 297 | $107.82 |
| 2026-05-21 | 47 | $106.82 |
| 2026-05-19 | 171 | $113.24 |
| 2026-05-18 | 889 | $112.06 |
| 2026-05-15 | 3,966 | $109.16 |
| 2026-05-12 | 936 | $105.15 |
| 2026-05-11 | 981 | $107.99 |
| 2026-05-08 | 99 | $113.61 |
| 2026-05-04 | 100 | $111.25 |
| 2026-05-01 | 77,732 | $110.10 |
| 2026-04-30 | 14,857 | $106.82 |
| 2026-04-27 | 200 | $103.45 |
| 2026-04-21 | 155 | $104.84 |
| 2026-04-14 | 108 | $93.53 |
| 2026-04-13 | 220 | $90.03 |
| 2026-04-06 | 83 | $96.54 |
| 2026-04-01 | 255 | $98.57 |
| 2026-03-17 | 5,366 | $101.95 |
| 2026-03-13 | 5,857 | $94.92 |
| 2026-03-12 | 3,509 | $98.81 |
| 2026-02-27 | 564 | $117.45 |
| 2026-02-26 | 2,220 | $111.65 |
| 2026-02-23 | 4,530 | $112.94 |
| 2026-02-20 | 2 | $111.11 |
| 2026-02-19 | 4,239 | $112.46 |
| 2026-02-10 | 37,272 | $118.91 |
| 2026-02-05 | 48,655 | $116.90 |
| 2026-02-04 | 6,054 | $120.28 |
| 2026-02-03 | 239,338 | $131.93 |
| 2026-01-22 | 1,007 | $146.81 |
| 2026-01-08 | 3,316 | $176.30 |
| 2026-01-02 | 3 | $175.50 |
| 2025-12-31 | 16,158 | $177.14 |
| 2025-12-29 | 1,000 | $181.66 |
| 2025-12-22 | 69,245 | $185.96 |
| 2025-12-18 | 16 | $183.95 |
| 2025-12-15 | 5,519 | $196.28 |
| 2025-12-08 | 500 | $199.75 |
| 2025-11-28 | 3 | $188.43 |
| 2025-11-26 | 485 | $175.76 |
| 2025-11-21 | 6 | $168.01 |
| 2025-11-20 | 5,410 | $174.48 |
| 2025-11-17 | 483 | $185.07 |
| 2025-11-13 | 10,355 | $186.58 |
| 2025-11-12 | 37,520 | $194.89 |
| 2025-10-30 | 10 | $272.76 |
| 2025-10-23 | 81 | $307.57 |
| 2025-10-20 | 3,727 | $324.02 |
| 2025-10-17 | 5,577 | $330.56 |
| 2025-10-14 | 302 | $330.00 |
| 2025-10-07 | 278 | $320.31 |
| 2025-09-29 | 996 | $326.39 |
| 2025-09-26 | 25 | $313.49 |
| 2025-09-22 | 7,892 | $290.90 |
| 2025-09-15 | 3,343 | $307.91 |
| 2025-09-11 | 7 | $285.91 |
| 2025-09-05 | 96 | $272.70 |
| 2025-08-22 | 258 | $345.52 |
| 2025-08-21 | 1,087 | $338.88 |
| 2025-08-19 | 221 | $369.19 |
| 2025-08-14 | 223 | $327.93 |
Showing 90 most recent of 106.
A "fail-to-deliver" occurs when a party in a securities trade does not deliver the shares by the settlement date. The SEC publishes twice-monthly files of CNS fails-to-deliver by security. This page aggregates the rolling 12-month window. CUSIP 26603R106 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.